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Fair Value Measurements (Tables)
9 Months Ended
Sep. 30, 2017
Fair Value Disclosures [Abstract]  
Asset and liabilities recorded at fair value
Assets and liabilities recorded at fair value, within Level 2 of the hierarchy framework, in the accompanying balance sheets as of September 30, 2017 and December 31, 2016, respectively, were as follows:
 
 
As of September 30, 2017
 
As of December 31, 2016
 
 
(In thousands)
Assets:
 
 
 
 
Investments
 
$
708

 
$
3,254

Demand obligations
 
13

 
12

Interest rate derivative financial instruments
 
7,701

 
9,484

Total
 
$
8,422

 
$
12,750

Liabilities:
 
 
 
 
Interest rate derivative financial instruments
 
$
16,979

 
$
24,411

Total
 
$
16,979

 
$
24,411